| 초록 |
Ceramic foams prepared from silica-clay were coated with TiO2 and V2O5 catalysts for selective catalytic reduction of NOx with NH3. The effects of V2O5 loading, reaction temperature, space velocity, and oxygen content on NOx reduction with NH3 were mainly investigated. Also, the NOx reduction characteristics of V2O5 and V2O5-TiO2 filters were compared under the existence of sulfur dioxide. From the results, the optimal NOx reduction with the maximum reduction efficiency of 91% could be performed under the condition with V2O5 loading 6.0wt.%, reaction temperature 350℃, space velocity 6000h-1, and oxygen content 5%. And, the V2O5-TiO2 filters have shown more excellent NOx reduction efficiency and stronger resistance against sulfur dioxide than the V2O5 filters. |
